7.5.4. Serial encoder reset

7.5.4. Serial encoder reset

 

The serial encoder reset function is to release the error state of the motor or to newly set the zero-point of the encoder. When the encoder reset is implemented, the rotational frequency of the encoder will be cleared to become 0. So, the usage range of the motor will be maximized when measured from the zero-point setting position.

 

The internal memory of the serial encoder stores the rotational frequency information of the encoder. The encoder reset function needs to be carried out at the initialization work stage, while the function must not be used at all when the robot is operating normally. However, when the encoder suffers errors due to abnormal communication, for example, or when it is required to reset the encoder due to its battery runs out, the function can be performed. Even in such situation, the modification work needs to be carried out while checking the real positions in the robot program, considering that there could be some difference compared with the original position of the robot.

 

 

Figure 7.54 Serial encoder resetting

 

 

 

l In order for the serial encoder to memorize the location even when the power of the controller is out, there is a battery attached for the encoder. If both the power for the controller and the battery power for the encoder are not supplied at all, the location information of the encoder will be deleted, causing you to suffer some difficulties in using the work program.

 

l Accordingly, in case of encoder battery voltage error, the replacement of the encoder battery must take place only when the power of the controller is turned on.